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I need some help with my controls class project.
I'm designing a control system to keep the light level in my room constant across the day by adjusting the blinds and the ceiling lamp. To do this I made a system of 4 LDR sensors, 1 per corner. Unfortunately since I don't have access to a...
hey all, I'm trying to design a lux sensor for my degree project. To do this I'm using LDRs (light dependant resistors) whos resistance is based on the lux they measure.
my question is this, since lux is lumens/square meter, wouldn't that mean that they are in fact measuring the lumens...
My digital circuitry class was assigned to write the code in verilog for a PWM. Unfortunately I can't even get my code to work.
module PWM (clk,duty,period,B);
input clk,duty,period;
output reg B;
reg [8:0]count=0; //8 bit counter
always @ (negedge clk)
begin
if (count<duty) assign B=1...
what the fudge symbol
I think this symbol isn't being simulated correctly in spice, as my current setup for this doesn't seem to be working as pictured here
My professor says it's a split collector pnp and should be simulated as shown in the picture shown above.:???:
Thank you very much for your help, I don't know why I didn't think to check the data sheet.
I'm running the signal to a micro controller so linearity isn't all that important, I'm using photo diodes because I've used them before to make light sensitive robots, just never anything that was...
I need to design a light sensor system to monitor overall luminance in a room. To do this I need to know the conversion between the resistance of a photoresistor and the lux.
I know it is a linear relationship along a double log graph, however from my research there are a number of different...
wireing a 741 opamp
sorry, forgot to label it, thats a light sensor. the LDRs I've found are too expensive and i got a bunch of solar lights during the last "everywatt counts" sale at home depot so I'm trying to use those.
Thanks for the tip about the single source opamp I found some good...
wireing a 741 opamp
greetings all,
ok heres the issue, I'm trying to build a light sensor for my robot, I have a pretty good desogn with a 741 diferentiator circuit, the only problem is that I want to have it from just a standard DC powers supply. However I don't know and can't find anywhere...
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